Audi A8 Quattro 2009 - 2004-09 ELECTRICAL Fuses & Circuit Breakers - A8 & S8

Audi A8 Quattro 2009 - IDENTIFICATION

WARNING:

Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see AIRBAG SAFETY PRECAUTIONS in BODY INTERIOR article.

Audi A8 Quattro 2009 - ENGINE CODE

Engines are identified by a 3-letter code stamped on the engine. For engine code locations, see Fig. 1 and Fig. 2. Engine codes are also located on the vehicle data plate.

Fig. 1: Audi A8 Quattro 2009 - Component Locations - Locating "Engine Code" And "Serial Number" (4.2L V8)

Fig. 2: Audi A8 Quattro 2009 - Component Locations - Locating "Engine Code" And "Serial Number" (6.0L V12)

Audi A8 Quattro 2009 - COMPONENT LOCATION Relay & Fuse Holder Panel Locations

Fig. 3: Audi A8 Quattro 2009 - Component Locations - Identifying Relay & Fuse Holder Overview

Location No.	Description	Refer To
1	Fuses (SB) on Fuse Holder, Instrument Panel, left side	Fig. 4
2	Relay and Fuse Holder (S) in E-Box plenum chamber	Fig. 6
3	Relay and Fuse Holder (S) behind Instrument Panel, left side	Fig. 7
4	Fuses (SC) on Fuse Holder, Instrument Panel, right side	Fig. 5
5	Fuses (S) on Main Fuse Holder, on A-pillar right side	Fig. 9
6	Relay and Fuse Holder (S) in Front Foot- well, right side	Fig. 8
7	Relay and Fuse Holder in Luggage Compartment, right side	Fig. 10
8	Relay and Fuse Holder in Luggage Compartment, right side, Fuses	Fig. 10
9	Relay and Fuse Holder (SF) in Luggage Compartment, right side, Fuses	Fig. 10
10	Fuses (SD) on Fuse Holder in Luggage Compartment, left side	Fig. 11

Fig. 4: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Left Side Fuse Box

Fig. 5: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Fuse Box - Right Side

Fig. 6: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In E-Box Plenum Chamber

Fig. 7: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel Behind Instrument Panel Left Side

Fig. 8: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Front Foot-Well - Right Side

Fig. 9: Audi A8 Quattro 2009 - Component Locations - Main Fuse Panel A Pillar - Right Side

Fig. 10: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Luggage Compartment - Right Side

Fig. 11: Audi A8 Quattro 2009 - Component Locations - Fuse Panel (SD) In Luggage Compartment - Left Side

Audi A8 Quattro 2009 - Relay Locations

Fig. 12: Audi A8 Quattro 2009 - Component Locations - Identifying Relay Locations Overview

Location No.	Description	Refer To
1	Relay and Fuse Holder (S) in E-Box plenum chamber	Fig. 6
2	Relay and Fuse Holder (S) behind Instrument Panel, left side	Fig. 7
3	Relay and Fuse Holder (S) in Front Foot-well, right side	Fig. 8
4	Relay and Fuse Holder in Luggage Compartment, right side	Fig. 13

Fig. 13: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Luggage Compartment - Right Side

Audi A8 Quattro 2009 - COMPONENT IDENTIFICATION FUSES - CIRCUIT PROTECTION

WARNING:

Never replace a fuse with one that has a higher amperage rating. A fuse with a too high amperage could damage the electrical part and cause a fire.

For access to fuse boxes, refer to illustrations below.

Fig. 14: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Left Side Fuse Box Panel Cover

Fig. 15: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Left Side Fuse Box Panel Cover Components

Fig. 16: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Right Side Fuse Box

Fig. 17: Audi A8 Quattro 2009 - Component Locations - Identifying Luggage Compartment Right Side Fuse Box

Fig. 18: Audi A8 Quattro 2009 - Component Locations - Identifying Luggage Compartment Left Side Fuse Box

The individual circuits are protected by fuses. The fuse panels with the fuses are located on the left and right front faces of the instrument panel behind a cover and in the right storage area in the luggage compartment.

There is a plastic clip (fuse puller 'A') in the cover on the left side of the instrument panel, which can be used to remove the fuses. The crank (B) is used for emergency operation of the power roof (if equipped). You will also find a label (C) on both covers in the instrument panel with the fuse layout) for the corresponding fuse panel. - Fig. 15.

Two spare fuses and a sticker identifying the fuses are located on the inside of the fuse box cover.

Fuses with the proper ampere ratings are available at your Audi dealer.

NOTE:

On no account should fuses be repaired (e.g. with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause fire. If a fuse blows repeatedly, do not keep replacing it. Diagnose and fix shorted or overloaded circuit.

AUTOMATIC CIRCUIT BREAKERS:

The electric power windows and the electric seat adjusters are protected with Circuit breakers which reset automatically after the circuit overload has been corrected.

Audi A8 Quattro 2009 - FUSE - COLOR CODES

Identifying fuse color and ampere rating, refer to table below.

WARNING:

Never replace a fuse with one that has a higher amperage rating. A fuse with a too high amperage could damage the electrical part and cause a fire.

Audi A8 Quattro 2009 IDENTIFYING FUSE BY COLOR

Current Rating Amperes	Color
1A	Black
3A	Violet
5A	Light Brown
7.5A	Brown
10A	Red
15A	Blue
20A	Yellow
25A	White or Natural
30A	Green
40A	Orange

Audi A8 Quattro 2009 - Replacing A Fuse

A problem in the electrical system may be caused by a blown fuse.

• Switch off the ignition and the electrical component affected.
• Carefully pry the face cover off the instrument panel using the ignition key or a screwdriver. See Fig. 14.
• Check the fuse index to find out which fuse belongs to the component which has failed. See FUSE INDEX INFORMATION.
• Remove the blown fuse with the plastic clip provided. The clip is located on the holder in the fuse box cover.
• Replace a blown fuse (recognizable by the melted metal strip inside) with a fuse of the same amperage.
• Firmly snap the cover back onto the instrument panel face.

Audi A8 Quattro 2009 - FUSE INDEX INFORMATION FUSE INDEX - INTERIOR

NOTE:

For relay identification within the relay and fuse holder panels, refer to RELAYS.

Audi A8 Quattro 2009 - INSTRUMENT PANEL - LEFT SIDE

NOTE:

The left side instrument panel fuse holder is located on the left side end of the dash panel, for access to fuse box, refer to illustrations below.

Fig. 19: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Left Side Fuse Box

Fig. 20: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Left Side Fuse Box Panel Cover

Audi A8 Quattro 2009 IDENTIFYING FUSES (INSTRUMENT PANEL - LEFT SIDE)

Fuse No.	Rating (Amperage)	Function/Component	Wiring ID.	Terminal
1	5A	J530 - Garage Door Opener Control Module (HomeLink)	SB1	15
2	5A	J446 - Parking Aid Control Module	SB2	30
3	5A	J446 - Parking Aid Control Module	SB3	15
4	10A	J431 - Headlight range control V48 - Left Headlamp Beam Adjustment Motor V49 - Right Headlamp Beam Adjustment Motor	SB4	15
5	5A	J285 - Instrument Cluster Control Module Interface J533 - Data Bus On Board Diagnostic Interface	SB5	30
6	10A	J527 - Steering Column Electronic Systems Control Module	SB6	30
7	5A	T16 - Data Link Connector (DLC), below instrument panel, left	SB7	30
8	5A	G266 - Oil Level Thermal Sensor T16 - Data Link Connector (DLC), below instrument panel, left	SB8	15
9	10A	J104 - ABS Control Module J527 - Steering Column Electronic Systems Control Module	SB9	15
10	5A	J533 - Data Bus On Board Diagnostic Interface	SB10	15
11	- 10A	Vacant J759 - Directional Stabilization Assistance Control Module (1)	SB11	15
12	5A	F - Brake light switch	SB12	30
13	10A	J526 - Telephone/Telematics Control Module R36 - Telephone Transceiver	SB13	30
14	-	Vacant	SB14	-
15	5A	E408 - Access/Start Authorization Button	SB15	30
16	-	Vacant - Rear Seat Entertainment (2)	SB16	15
17	10A	Z47 - Distance Regulation Sensor Heater (3) J428 - Distance Regulation Control Module	SB17	15
18	5A	720 - Left Washer Nozzle Heater Z21 - Right Washer Nozzle Heater	SB18	75
19	- 15A	Vacant J711 - Windshield Washer Fluid Heating Relay (3)	SB19	75
20	5A	J502 - Tire Pressure Monitoring Control Module	SB20	30
21	-	Vacant	SB21	-
22	5A	F47 - Brake Pedal Switch	SB22	87
23	-	Vacant	SB23	-
24	15A	H2 - High Tone Horn H7 - Low Tone Horn J4 - Horn Relay	SB24	30
25	40A	J400 - Wiper Motor Control Module V - Windshield Wiper Motor V5 - Windshield Washer Pump	SB25	30
26	30A 30A -	U18 - 12V Socket 2 (3) U19 - 12V Socket 3 (3) Vacant	SB26	30
27	25A	J104 - ABS Control Module	SB27	30
28	-	Vacant	SB28	-
29	1A	- Switch illumination	SB29	58s
30	-	Vacant	SB30	-
31	30A	J519 - Vehicle Electrical System Control Module	SB31	30
32	-	Vacant	SB32	-
33	25A	Z42 - Left rear footwell heater	SB33	75
34	-	Vacant	SB34	-
35	-	Vacant	SB35	-
36	-	Vacant J769 - Lane Change Assistance Control Module (1)	SB36	15
37	15A	J698 - Cooler	SB37	15
38	30A	J519 - Vehicle Electrical System Control Module	SB38	30
39	7.5A	J386 - Driver Door Control Module	SB39	30
40	25A	J519 - Vehicle Electrical System Control Module V123 Steering Column Adjustment Motor (vertical) V124 - Steering Column Adjustment Motor (axial)	SB40	30
41	7.5A	J388 - Left Rear Door Control Module	SB41	30
42	25A	J518 - Access/Start Control Module	SB42	30
43	10A	- Left Headlight with Cornering Light (2)	SB43	15
44	10A	- Right Headlight with Cornering Light (2)	SB44	15
(1) From m.y. 09.2007 (2) From m.y. 2006 (3) Through m.y. 2004 Some of the equipment items listed are optional or only available on certain model configurations.

NOTE:

Whenever replacing a fuse, always consult the sticker on the inside of the fuse panel cover. It contains the most up-to-date information regarding the fuse arrangement.

Audi A8 Quattro 2009 - INSTRUMENT PANEL - RIGHT SIDE

NOTE:

The right side instrument panel fuse holder is located on the right side end of the dash panel, refer to illustrations below.

Fig. 21: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Right Side Fuse Box

Fig. 22: Audi A8 Quattro 2009 - Component Locations - Identifying Instrument Panel Fuse Box - Right Side

Audi A8 Quattro 2009 IDENTIFYING FUSES (INSTRUMENT PANEL - RIGHT SIDE)

Fuse No.	Rating (Amperage)	Function/Component	Wiring ID.	Terminal
1	5A	J540 - Electro-Mechanical Parking Brake Control Module	SC1	15
2	10A	J255 - Climatronic Control Module	SC2	30
3	5A	F189 - Tiptronic Switch F305 - Transmission Park Selector Switch N110 - Shift Lock Solenoid	SC3	15
4	15A	J217 - Transmission Control Module (TCM)	SC4	87
5	15A	G70 - Mass Air Flow (MAF) Sensor G246 - Mass Air Flow (MAF) Sensor 2 J299 - Secondary Air Injection (AIR) Pump Relay J545 - Secondary Air Injection (AIR) Pump Relay 2 N112 - Secondary Air Injection (AIR) Solenoid Valve N115 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve 2 N145 - Right Electro-Hydraulic Engine Mount Solenoid Valve N290 - Fuel Metering Valve N321 - Exhaust Flap Valve 1 N335 - Intake Air Switch-Over Valve V144 - Leak Detection Pump (LDP)	SC5	87
6	15A	G39 - Heated Oxygen Sensor (HO2S) G108 - Heated Oxygen Sensor (HO2S) 2	SC6	87
7	15A	0130- Oxygen Sensor (02S) Behind Three Way Catalytic Converter (TWC) G131 - Oxygen Sensor (02S) 2 Behind Three Way Catalytic Converter (TWC)	SC7	87
8	10A	F265 - Map Controlled Engine Cooling Thermostat N205 - Camshaft Adjustment Valve 1 N208 - Camshaft Adjustment Valve 2 N382 - Torque Support Valve V51 - After-Run Coolant Pump V157 - Intake Flap Motor V183 - Variable Intake Manifold Runner Motor	SC8	87
9	5A	G238 - Air Quality Sensor E265 - Rear A/C Display Control Head (Climatronic) E128 - Left Rear Heated Seat Regulating Switch E129 - Right Rear Heated Seat Regulating Switch G65 - High Pressure Sensor J255 - Climatronic Control Module E256 - ASR/ESP Button	SC9	15
10	10A	J197 - Level Control System Control Module	SC10	15
11	5A	G397 - Rain/Light Recognition Sensor	SC11	30
12	5A	J523 - Front Information Display Control Head Control Module	SC12	30
13	10A	J528 - Roof Electronics Control Module	SC13	30
14	5A	R41 - CD Changer R92 R92 - CD-ROM Drive	SC14	30
15	5A	J644 - Energy Management Control Module	SC15	30
16	-	Vacant	SC16	-
17	5A	V7 - Coolant Fan V177 - Coolant Fan 2	SC17	87
18	5A	J234 - Airbag Control Module J706 - Seat Occupied Recognition Control Module	SC17	15
19	-	Vacant	SC19	-
20	5A	J526 - Telephone/Telematics Control Module J672 - Driver Seat Ventilation Control Module 3673 - Front Passenger Seat Ventilation Control Module	SC20	75
21	5A	J271 - Motronic Engine Control Module (ECM) Power Supply Relay J623 - Engine Control Module (ECM)	SC21	30
22	-	Vacant	SC22	-
23	5A	F234 - Parking Brake Pressure Switch	SC23	30
24	10A	J520 - Vehicle Electrical System Control Module 2	SC24	30
25	15A	J217 - Transmission Control Module (1CM)	SC25	30
26	10A	E265 - Rear A/C Display Control Head (Climatronic) J255 - Climatronic Control Module	SC26	30
27	20A	J245 - Power Sunroof Control Module	SC27	30
28	5A	J623 Engine Control Module (ECM)	SC28	15
29	15A	N30.. - Cylinder 1 Fuel Injector	SC29	87
30	30A	N... - Ignition Coil J623 - Engine Control Module (ECM)	SC30	87
31	20A	G23 - Fuel Pump (FP) N115 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve 2	SC31	87
32	10A 5A	J217 - Transmission Control Module (1CM) (multitronic?) J217 - Transmission Control Module (1CM) (6-Speed) 09E, 09L	SC32	15
33	25A	Z43 - Right Rear Footwell Heater	SC33	75
34	20A	- Heated Seats, Seat Ventilation Rear E265 - Rear A/C Display Control Head (Climatronic)	SC34	30
35	20A	J255 - Climatronic Control Module J672 - Driver Seat Ventilation Control Module J673 - Front Passenger Seat Ventilation Control Module	SC35	30
36	20A	U1 - Cigarette lighter, front	SC36	30
37	20A 30A 25A (2)	U9 - Rear Cigarette Lighter U - 12V Socket 2 (1) U19 - 12V Socket 3 (1)	SC37	30
38	20A	V284 - Coolant Fan 3	SC38	30
39	7.5A	J387 - Front Passenger Door Control Module	SC39	30
40	15A	J569 - Brake Booster Relay	SC40	30
41	7.5A	J389 - Right Rear Door Control Module	SC41	30
42	-	Vacant	SC42	-
43	30A	J39 - Headlight Washer System Relay	SC43	30
44	30A	V2 - Fresh Air Blower	SC44	15
(1) From m.y. 2005 (2) From m.y. 2006 Some of the equipment items listed are optional or only available on certain model configurations.

NOTE:

Whenever replacing a fuse, always consult the sticker on the inside of the fuse panel cover. It contains the most up-to-date information regarding the fuse arrangement.

Audi A8 Quattro 2009 - RELAY & FUSE PANEL BEHIND INSTRUMENT PANEL - LEFT SIDE

NOTE:

This relay/fuse panel is located behind instrument panel on left side, refer to illustration below.

Fig. 23: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel Behind Instrument Panel Left Side

Audi A8 Quattro 2009 IDENTIFYING FUSES (RELAY & FUSE PANEL BEHIND INSTRUMENT PANEL - LEFT SIDE)

Location	Rating (A)	Function/Component
A	60A	S123 - ABS Control Module Fuse 1
B	40A	S110 - Self-Leveling System Fuse
C	30A	S43 - Power Window Circuit Breaker
D	30A	S44 - Power Seat Circuit Breaker 1
E	30A	S45 - Power Seat Circuit Breaker 2
F	-	Vacant
G	-	Vacant
H	-	Vacant

Audi A8 Quattro 2009 - MAIN FUSE PANEL A-PILLAR - RIGHT SIDE

NOTE:

The main fuse panel is located on right side A pillar, refer to illustration below.

Fig. 24: Audi A8 Quattro 2009 - Component Locations - Main Fuse Panel A Pillar - Right Side

Audi A8 Quattro 2009 IDENTIFYING FUSES (MAIN FUSE PANEL A-PILLAR - RIGHT SIDE)

Location	Rating (A)	Function/Component
1	60A	S42 - Coolant Fan Fuse
1A	-	Threaded Connection for Coolant Fan
2	60A	S104 - Second Speed Coolant Fan Fuse
2A	-	Threaded Connection for Second Speed Coolant Fan
3	-	Threaded Connection terminal 30, Battery
4	-	Threaded Connection terminal 30, Starter

Audi A8 Quattro 2009 - RELAY & FUSE PANEL IN FRONT FOOT-WELL - RIGHT SIDE

NOTE:

This relay & fuse panel is located in front foot-well on right side, refer to illustration below.

Fig. 25: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Front Foot-Well - Right Side

Audi A8 Quattro 2009 IDENTIFYING FUSES (RELAY & FUSE PANEL IN FRONT FOOT-WELL - RIGHT SIDE)

Location	Rating (A)	Function/Component
A	30A	S170 - Front Passenger's Window Regulator Fuse (1)
B	30A	S46 - Front Passenger's Power Seat Adjustment Circuit Breaker 1
C	- 30A	Vacant (2) S170 - Front Passenger's Window Regulator Fuse (3)
D	30A	S80 - Front Passenger's Power Seat Adjustment Circuit Breaker 2
E	-	Vacant
F	-	Vacant
(1) Through 07.2006. (2) From m.y. 2004. (3) From 08.2006.

Audi A8 Quattro 2009 - FUSE INDEX - LUGGAGE COMPARTMENT RELAY & FUSE HOLDER IN LUGGAGE COMPARTMENT - RIGHT SIDE

NOTE:

This luggage compartment fuse holder is located on the right side interior, refer to illustrations below. For relay identification, refer to RELAY AND FUSE HOLDER IN LUGGAGE COMPARTMENT - RIGHT SIDE.

Fig. 26: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Luggage Compartment - Right Side

Fig. 27: Audi A8 Quattro 2009 - Component Locations - Identifying Luggage Compartment Fuse Box (Right Side)

Audi A8 Quattro 2009 IDENTIFYING FUSES (LUGGAGE COMPARTMENT - RIGHT SIDE)

Position/ Location	Rating (Amperage)	Function/Component	Terminal
A	40A	S41 - Individual Fuse for Heated Rear Glass	-
B	30A	S335 - Rear Seat Adjustment Circuit Breaker 1 (1)	-
B	40A	S81 - Fuel Pump (FP) Fuse (2)	-
C	30A	S336 - Rear Seat Adjustment Circuit Breaker 2	-
D	-	Not used (1)	-
D	15A	S254 - Communication Fuse (2)	-
1	110A	S131- Safety Fuse, for -Z2- Heated Front Window	30
1A	-	Threaded Connection terminal, for -Z2- Heated Front Window	30a
2	60A	S132 - Safety Fuse, for Radio, Navigation, TV Tuner	30
2A	-	Threaded Connection terminal	30a
3	150A	S133 - Safety Fuse, Vehicle Electrical System	30
3A	-	Threaded Connection terminal, Vehicle Electrical System	30a
4	-	Threaded Connection terminal, Fuse Holder	30
5	-	Threaded Connection terminal, Battery	30
SF1	-	Not used	-
SF2	20A	G6 - Transfer Fuel Pump (FP)	-
SF3	-	Not used	-
SF4	-	Not used	-
SF5	20A	J393 - Comfort System Central Control Module, Taillight left	-
SF6	10A	J393 - Comfort System Central Control Module, Taillight right	-
SF7	20A	J393 - Comfort System Central Control Module, Door closing	-
SF8	30A	J540 - Electro-Mechanical Parking Brake Control Module V282 - Left Parking Break Motor	-
SF9	30A	J540 - Electro-Mechanical Parking Brake Control Module V283 - Right Parking Break Motor	-
SF10	-	Not used	-
SF11	-	Not used	-
SF12	15A	J345 - Towing Recognition Control Module	-
(1) Through m.y. 2005 (2) From m.y. 2006

Audi A8 Quattro 2009 - FUSE PANEL (SD) IN LUGGAGE COMPARTMENT - LEFT SIDE

NOTE:

This luggage compartment fuse holder is located on the left side interior, refer to illustrations below.

Fig. 28: Audi A8 Quattro 2009 - Component Locations - Fuse Panel (SD) In Luggage Compartment - Left Side

Fig. 29: Audi A8 Quattro 2009 - Component Locations - Identifying Luggage Compartment Left Side Fuse Box

Audi A8 Quattro 2009 IDENTIFYING FUSES (FUSE PANEL (SD) IN LUGGAGE COMPARTMENT - LEFT SIDE)

Location	Rating (A)	Function/Component
A1	-	Threaded Connection terminal 30, Battery
B1	-	Threaded Connection terminal 30, Fuse Holder
SD1	-	Vacant
SD2	-	Vacant
SD3	-	Vacant
SD4	-	Vacant
SD5	30A	J525 - Digital Sound System Control Module
SD6	5A	J401 - Navigation System with CD Drive Control Module
SD7	-	Vacant
SD8	5A	J772 - Rear View Camera System Control Module (1)
SD9	5A	R146 - Radio -R-, Satellite Radio
SD10	15A 30A	R148 - Center Speaker J787 - Digital Sound System Control Module 2 (2)
SD11	20A	U5 - 12V Socket (3)
SD12	5A	R64 - Auxiliary Heater Radio Receiver (3)
(1) Not used through m.y. 2007 (2) Only BANG and OLUFSEN (3) Not applicable to USA/CDN

NOTE:

Whenever replacing a fuse, always consult the sticker on the inside of the fuse panel cover. It contains the most up-to-date information regarding the fuse arrangement.

Audi A8 Quattro 2009 - FUSE INDEX - ENGINE COMPARTMENT MAIN FUSES (S) IN E-BOX PLENUM CHAMBER

NOTE:

The main fuses electronic box is located on the left side of the engine compartment plenum chamber, refer to illustration below.

Fig. 30: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In E-Box Plenum Chamber

Audi A8 Quattro 2009 IDENTIFYING FUSES (RELAY & FUSE PANEL IN E-BOX PLENUM CHAMBER - LEFT SIDE)

Location	Rating (A)	Function/Component
A	-	Vacant
B	50A	S130 - Secondary Air Pump Fuse
C	50A	S284 - Secondary Air Pump Fuse 2, (1)
D	-	Vacant
E	-	Vacant
F	-	Vacant
G	-	Vacant
(1) Only code BSB.

Audi A8 Quattro 2009 - RELAY INDEX INFORMATION RELAY AND FUSE HOLDER (S) IN E-BOX PLENUM CHAMBER

NOTE:

This relay and fuse holder (s) in e-box plenum chamber is located on the left side of engine compartment, refer to illustration below. For fuse identification A through G, refer to MAIN FUSES (S) IN E-BOX PLENUM CHAMBER.

Fig. 31: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In E-Box Plenum Chamber

Audi A8 Quattro 2009 IDENTIFYING RELAYS (ENGINE COMPARTMENT - IN E-BOX PLENUM CHAMBER)

Position/ Location	Function/Component
1	J299 - Secondary Air Injection (AIR) Pump Relay
2	J545 - Secondary Air Injection (AIR) Pump Relay 2 (1)
2	J271 - Motronic Engine Control Module (ECM) Power Supply Relay (2)
3	J271 - Motronic Engine Control Module (ECM) Power Supply Relay (3)
3	J545 - Secondary Air Injection (AIR) Pump Relay 2, (4), (1)
4	Not used
(1) Only code BSB (2) From 06.2003 (3) Through 05.2003 (4) From m.y. 2004

Audi A8 Quattro 2009 - RELAY AND FUSE HOLDER (S) BEHIND INSTRUMENT PANEL - LEFT SIDE

NOTE:

This relay and fuse holder (s) is located behind instrument panel on the left side, refer to illustration below. For fuse identification A through J, refer to RELAY & FUSE PANEL BEHIND INSTRUMENT PANEL - LEFT SIDE.

Fig. 32: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel Behind Instrument Panel Left Side

Audi A8 Quattro 2009 IDENTIFYING RELAYS (BEHIND INSTRUMENT PANEL - LEFT SIDE)

Position/ Location	Function/Component
1	J403 - Level Control System Compressor Relay
2	J4 - Horn Relay
3	J329 - Power Supply Relay (terminal 15)
4	J711 - Windshield Washer Fluid Heating Relay (1)
5	Not used
6	J680 - Power Supply Relay 1 (terminal 75)
(1) Through m.y. 2004

Audi A8 Quattro 2009 - RELAY AND FUSE HOLDER (S) IN FRONT FOOT-WELL - RIGHT SIDE

NOTE:

This relay and fuse holder (s) is located in the front foot-well on right side interior, refer to illustration below. For fuse identification A through F, refer to RELAY & FUSE PANEL IN FRONT FOOT-WELL - RIGHT SIDE.

Fig. 33: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Front Foot-Well - Right Side

Audi A8 Quattro 2009 IDENTIFYING RELAYS (IN FRONT FOOT-WELL - RIGHT SIDE)

Position/ Location	Function/Component
1	J752 - Coolant Fan 3 Relay (1)
1	J569 - Brake Booster Relay
1	J496 - Auxiliary Engine Coolant (EC) Pump Relay
2	J53 - Starter Relay
3	J695 - Starter Relay 2
4	J17 - Fuel Pump (FP) Relay
4	J757 - Engine Component Power Supply Relay (1)
5	J39 - Headlamp Washer Relay
(1) Only code BSB (6.0L) Note: -J752-, -J445-, -J569-, -J496- are Mini relays and they are located at the same Relay Slot

Audi A8 Quattro 2009 - RELAY AND FUSE HOLDER IN LUGGAGE COMPARTMENT - RIGHT SIDE

NOTE:

This luggage compartment fuse holder is located on the right side interior, refer to illustrations below. For identification of all other fuses, circuit breakers and threaded connections, refer to RELAY & FUSE HOLDER IN LUGGAGE COMPARTMENT - RIGHT SIDE.

Fig. 34: Audi A8 Quattro 2009 - Component Locations - Relay & Fuse Panel In Luggage Compartment - Right Side

Fig. 35: Audi A8 Quattro 2009 - Component Locations - Identifying Luggage Compartment Right Side Fuse Box

Audi A8 Quattro 2009 IDENTIFYING RELAYS (LUGGAGE COMPARTMENT - RIGHT SIDE)

Position/ Location	Function/Component
1	J9 - Rear Window Defogger Relay
2	Not used
2	J16 - Power Supply Relay (1)
3	J49 - Fuel Pump (FP) Relay
3	J748 - Cold Start Fuel Pump (FP) Relay, (1)
3	J17 - Fuel Pump (FP) Relay (2)
(1) From m.y. 2006 (2) Only code BVJ